Automatically-closing cock.



A. OBRIEN.

AUTOMATIUALLY CLOSING GOGK.

APPLIGATION FILED SEPT. z, 1904. BBNEWBD JULY a1, 1907.

91 2,022. Patented Feb. 9, 1909.

IQVEDTU UNITED STATE BATET A FIC.

ARTHUR OBRIEN, OF CHICAGO, ILLINOIS, ASSIGNOR TO EUGENE OBRIEN, OF CHICAGO, ILLINOIS.

AUTOMATICALLY-CLOSING COCK.

lNo. 912,022.

Specification of Letters Patent.

Patented Feb. 9, 1909.

Application filed September 2, 1904:, Serial No. 223,056. Renewed July 31, 1907. Serial No. 386,362.

T o ZZZ whom it may concern:

Be it known that I, ARTHUR OBRIEN, a citizen of the United States, and a resident of the city of Chicago, Cook county, Illinois, have invented certain new and useful Improvements in Automatically Closing Cocks; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to automatically closing cocks. Many of the automatically opening and closing cocks and faucets heretofore devised are likely to leak either at the spout or through the top of the faucet should the discharge orilice or nozzle be restricted or closed.

In most of the self closing cocks and faucets especially those closing with the pressure, hammering occurs, and in some, is excessive, sometimes even so great as to quickly injure the valves and even burst the pipes.

The object of this invention is to provide an automatically closing faucet or cock adapted for use in delivering water or fluids of any kind therethrough or for use in delivering water or other iiuids under pressure as through a hose, and in either event, working noiselessly or without pounding or leaking.

The invention also has for a further object, an improvement, a strong, simple and durable construction not likely to get out of order and adapted to afford a maximum and continuous delivery with automatic yet noiseless closing.

The invention embraces many novel features and consists in the matters hereinafter described and more fully pointed out and defined in the appended claims.

In the drawings: Figure l is a central, vertical section of a device embodying my invention. Fig. 2 is a front elevation of a part of the valve mechanism. Fig. 3 is a section taken on line 3 3 of Fig. 1. Fig. et is a section on line H of Fig. l. Fig. 5 illustrates a dierent arrangement of the spring.

As shown in said drawings: A indicates the faucet body which may be of the usual or any desired shape or conformation and having a spout or nozzle a which at its inner end, as shown, projects inwardly through the wall of the faucet body. fithin said body and supported at the axis thereof on integral webs Z) is the cylindric air or water chamber B, which opens upwardly toward the spout or nozzle. Located above said chamber and shaped on its upper side to afford a downwardly extending conical seat is a flange Z and a central aperture.

Seated in the bore of the upper part of the valve body and shaped at its lower end complementally with the seat afforded by the flange Z and ground to a joint therewith is a valve casing C, as shown, provided with an open, relatively broad, slot on its front side as indicated in Fig. 2 and which is of a length to extend above the nozzle a as shown in Fig. l. Said casing is cored out to afford a relatively large interior, cylindric chamber and is open at is upper end and at its lower end fits to the seat formed by said flange a and is provided with a central cylindric tubular extension which extends through and below said seat and the flange c against which the valve closes.

Fitting against the lower tubular end of said casing is a valve closure which is carried on a tubular stem D which is apertured above the same and extends upwardly in said casing. Said closure comprises a conical head Z4 rigidly secured on the end of the stem and fitting within the bore at the lower end of said valve casing. Said head is fiat on its lower face aording a flat bearing for a packing washer (Z5 which projects beyond the periphery of said head Z4t and bears against and closes the lower end of said valve casing. Beneath said washer Z5 is provided a conical washer ZG which tapers downwardly and against the apex of which is secured a washer Z7 similar to the washer Z5 and which is of a size to fit exactly the bore in the chamber B. Below said washer Z7 is afforded a metallic washer ZS conical on its under side and flat on its upper side which affords a fiat bearing for said washer for approximately its entire lower surface. All of said washers are rigidly secured on said stem and head by means of a set screw Zo which is threaded through the stem and holds the parts of said closure firmly together. Said tubular stem D is closed at its upper end and at a point adjacent the enlarged open inner end of the nozzle, opens outwardly through a boss fZ which fits closely in the groove in the casing, but is shorter and affords a flat outer facing there for in register with and bearing against, the open end of the nozzle. Integrally or otherwise secured on said stem D above the lower end l is a peripheral flange Z2 provided with a downwardly facing seat adapted to engage a strong pushing spring Z3 b etween the same and the bottom of the casing. Said casing is held rigidly from movement in said valve body by means of a close fitting nut E which is threaded into the upper end of the body of the cock A and bears at its lower end on the upper end of the valve casing C. Said nut is provided with a cylindric axial aperture therethrough and fitting closely therein and carried on the stem is an upper valve F comprising an upwardly tapering integral or otherwise rigidly secured conical head upon which is secured apacking washer f of any suitable material which fits closely in the bore of said nut and is secured on said stem, as shown, by means of a push button, whereby the cock is operated. Said push button comprises a central cylindric body G provided with a flat downwardly facing end having an axial bolt thereon which threads into the end of said stem so that the packing washer f is provided with a flat bearing face for approximately its entire area on the upper side and on the lower side of the same is unsupported, except near its center. At the upper end of said cylindric portion of the push button is provided an outwardly directed flange g and integral therewith is the upwardly extending flange g adapted to secure the porcelain or other suitable contact surface in place. Extending below said flange g is a flange g3 continuous with the flange g which fits over the upper end of the body, concealing the joint between the same and the push button adapted to permit said push button to slide freely downward thereon forcing the valve stem downwardly and opening the valve.

The operation is as follows: Downward pressure of the push button forces the up per and lower valve closures downwardly, the ber or other packing washer ZT being practically unsupported above, readily yields to the downward pressure and is forced into the chamber B permitting the water or other fluid therein to readily escape. The valve is now opened and the water or other fluid flows upwardly through the stem and out the nozzle. As the stem is entirely closed at its upper end, none of the fluid can jet upwardly therethrough nor can any fluid escape elsewhere than through the nozzle, inasmuch as no appreciable quantity can possibly find its way between the valve casing and the body of the cock, because of the ground joint to which said valve casing is held firmly by means of the nut E. Furthermore, should any fluid escape past said seat, a central enlargement is provided in the bore of the faucet body at approximately the level of the spout as shown in Figs. l and 3 and from which any fluid accumulating, flows through the spout. Should any pressure be applied at the outlet or for instance, shouldthe nozzle be closed and the valve opened, the pressure resulting within the cock cannot force the fluid out at the top of the cock, owing to the construction of the valve I" therein which, owing to its flat bearing on the upper surface, entirely fills the bore in said nut when pressure is applied from below but readily yields to the action of the spring and the fluid pressure in closing. The closing of the cock is obviously retarded by the reduction of pressure in the chamber B as the stem rises and closure is partly withdrawn from said chamber and it is obvious that while the valve readily slides into said chamber above described, retarding action due to the withdrawal of the closure toward the mouth of the chamber insures a slow closing effectually preventing hainmering.

IVhile I have described but one construction embodying my invention, it is obvious that the same may be embodied in numerous ways and I therefore do not-purpose to limit this application otherwise than necessitated by the prior art as obviously many details of construction may be varied without departing from the principles of my invention.

I claim as my invention:

l. In a self closing faucet the combination with a faucet body and nozzle, of a valve in said body above and a valve below the nozzle, a rigid tubular connection between said valves having a bearing on the limer end of said nozzle, a chamber positioned to receive the lower of said valves when opened and acting' to retard closure of the same.

In a self closing cock the combination with a valve body and a nozzle opening therefrom, of a cylindric casing therein having a slot adjacent said nozzle, a downwardly opening valve below said nozzle, a hollow stem thereon slidable in said casing and provided with a bearing extending through said slot and engaging said nozzle, a valve carried on the upper end of said stem and operating means connected with said stem acting to force the same downwardly in opening the cock and a chamber adapted to receive the lower of said valves in opening and to retard closure thereof.

3. In a self closing cock the combination with a hollow body and a nozzle opening therefrom, of a longitudinally slotted valve casing in said body, a tubular valve stem therein closed at its upper end and opening into the nozzle, a bearing between said nozzle and said stem, a closure on the lower end of the stem acting to close the cock, a chamber adapted to receive said closure loosely in opening the valve and in which the closure lits closely during closure of the same, a valve on the upper end of the stem and actuating means on said valve connected with said stem. a

4L. The combination with a body portion having a central restricted passage therein, a valve seat at the lower end of the passage, a nozzle opening from said body, a tubular valve stem slidable in said passage and opening into the nozzle, a bearing between said nozzle and said stem, a valve closure carried at the lower end of the 4stem and comprising packing 4washers supported for approximately their entire area on their under side and unsupported on the upper, a chamber adapted to receive said closure when the valve is opened permitting the washer to turn upwardly and adapted to resist closure of the valve and a valve on the upper end of said stem acting to prevent escape of the fluid delivered therethrough from the top of the faucet.

5. In a self closing valve or cock the combination with a valve body and the nozzle therefor, of an inwardly directed flange below the nozzle, a longitudinally slotted valve casing fitting thereto and supported thereon and affording a downwardly facing valve seat at its lower end, a tubular nut engaged in the valve body and bearing against the upper end of the casing, a tubular stem slidable in said casing and projecting through said slot into engagement with the faucet nozzle, a closure on the lower end of said stem, a casing adapted to receive the same and acting to resist closing of the valve, a valve above the nozzle and operating means connected with said valve acting to open the faucet.

6. In a self closing faucet the combination with a valve body and nozzle, of a tubular stem therein having a bearing on the inner end of said nozzle, a valve on each end of the stem, that at the' lower acting as an inlet valve and that at the upper acting to prevent escape of fluid except through the nozzle, a cap on said upper valve inclosing the valve body and a spring acting normally to hold said valves in position to close the faucet.

7. In a self closing faucet, the combination with a faucet body and its nozzle, of reciprocating valves therein located one below and one above the nozzle and acting respectively to admit fluid therethrough and to prevent the fluid escaping except from the nozzle, tubular connection between said valves opening to said nozzle and having a bearing thereon, the lower of said valves comprising flat resilient packing washers having upper exposed faces, downwardly tapering conical washers beneath and supporting approximately the entire area of the same and a casing having a diameter equal to the diameter of the washers and adapted to receive said lower valve loosely in opening and in which the washers t tightly in and retard the closing.

8. In a self closing faucet, the combination with a faucet body and nozzle, of an open ended valve casing seated therein and provided with a longitudinal slot in the front side thereof, a tubular nut bearing on the upper end of the same and holding the same from movement, a tubular valve stem slidable in said casing provided with a lateral outlet projecting through said slot into engagement with the nozzle, a valve closure seated in the lower end of said casing comprising packing washers supported from below but free to bend upwardly, a cylindric casing adapted to receive the same in opening the valve and to afford a partial vacuum in closing, a spring acting to hold said valve normally closed and means on the upper end of said stem acting to prevent the escape of fluid except from the nozzle.

9. In a self closing faucet, the combination with a faucet body and nozzle, of a removable valve casing rigidly secured therein and affording an open vertical slot adjacent the inner end of the nozzle and a valve seat at the lower end of the casing, a spring supported valve acting to normally close the seat and comprising one or more packing washers rigidly supported from below but adapted to bend upwardly when the valve is opening, a casing into which the valve slides in opening and in which a partial vacuum is formed when the valve is closing, a tubular stem on said valve projecting through said slot into bearing engagement with said nozzle and a spring acting to close the valve.

In testimony whereof I have hereunto subscribed my name in the presence of two subscribing witnesses.

ARTHUR OBRIEN.

W'itnesses:

W. W. WITHENBURY, I-I. S. RUDD. 

